Great Planes O.S. Prop Adapter Kit (.20-.40FP .25-.46FX & SF)

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Great Planes O.S. Prop Adapter Kit. This fits O.S. .20-.40FP .25-.46FX & SF. 


  • Adapter kit for aluminum spinners
  • This steel adapter kit tightens the backplate & propeller onto the engine, then using a single bolt-on design, holds & centers each spinner perfectly on its baseplate.
  • Machined for accuracy
  • Includes aluminum bushing, prop washer and prop nut
  • This spinner adapter kit will fit the following engines: -O.S. 20-40FP .25-.46FX & SF
  • One year quality guarantee
  • Installation instructions provided on the header card

Shaft Size: 14-28
Prop Nut Length: 1316 (21mm)
Backplate Bushing Inner Diameter: 14
Outer Diameter: 38


  • (1) Propeller Nut
  • (1) Propeller Washer
  • (1) Aluminum Backplate Bushing

This product was added to our catalog on June 23, 2020